Re: [Crash-utility] [PATCH v2 03/17] MIPS64: Add gdb patch for Loongson machine

The gssq instruction is a Loongson extended instruction, so the gssq patch is applied to gdb. Signed-off-by: Huacai Chen <chenhuacai(a)loongson.cn&gt; Signed-off-by: Youling Tang <tangyouling(a)loongson.cn&gt; --- v1 -> v2: - Move the patch into the gdb-7.6.patch file. gdb-7.6.patch | 21 ++++++++++++++++++++- 1 file changed, 20 insertions(+), 1 deletion(-) diff --git a/gdb-7.6.patch b/gdb-7.6.patch index f64b55f..63c9a14 100644 --- a/gdb-7.6.patch +++ b/gdb-7.6.patch @@ -2500,4 +2500,23 @@ diff -up gdb-7.6/opcodes/configure.orig gdb-7.6/opcodes/configure +struct target_desc *tdesc_aarch64; #include "features/aarch64.c" #include "features/aarch64-without-fpu.c" - + +--- gdb-7.6/gdb/mips-tdep.c.orig ++++ gdb-7.6/gdb/mips-tdep.c +@@ -3261,6 +3261,16 @@ restart: + /* Irix 6.2 N32 ABI uses sd instructions for saving $gp and $ra. */ + set_reg_offset (gdbarch, this_cache, reg, sp + low_word); + } ++ else if (((inst & 0xFFE08020) == 0xeba00020) /* gssq reg,reg,offset($sp) */ ++ && regsize_is_64_bits) ++ { ++ reg = (inst >> 16) & 0x1F; ++ low_word = ((((inst >> 6) & 0x1FF) ^ 0x100) - 0x100) << 4; ++ set_reg_offset (gdbarch, this_cache, reg, sp + low_word); ++ reg = inst & 0x1F; ++ low_word = (((((inst >> 6) & 0x1FF) ^ 0x100) - 0x100) << 4) + 8; ++ set_reg_offset (gdbarch, this_cache, reg, sp + low_word); ++ } + else if (high_word == 0x27be) /* addiu $30,$sp,size */ + { + /* Old gcc frame, r30 is virtual frame pointer. */ -- 2.1.0